Paramagnetic Behavior of Rare-Earth Ions in Some Orthoferrites

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概要

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• Paramagnetic susceptibilities, χ_i(i=a,b,c) of single crystals of rare-earth orthoferrites RFeO_3 (R=Nd,Sm,Gd,Dy,Er,Yb and Y) were measured along the a, b and c axes at room temperature and 77 K. The main parts of the effective magnetic moments μ_<eff,i>'s were found to originate from rare-earth ions. All rare-earth ions except Dy^<3+> and Er^<3+> showed rather isotropic effective magnetic moments, which are nearly equal to those of the free ions. Er^<3+> and especially Dy^<3+> ions showed large anisotropy and the anisotropy increases with decreasing temperature. For Dy^<3+> μ_<eff,b>&g;μ_<eff,a>>μ_<eff,c> and for Er^<3+> μ_<eff,c>>μ_<eff,a>>μ_<eff,b>. The values of μ_<eff,i> for Dy^<3+> and Er^<3+> were obtained by using reported g-factors derived from optical experiments and the observed large anisotropy was found to result from the anisotropy of g-factor of the ground state.

• 社団法人日本物理学会の論文
• 1973-02-05

著者

• Mikami Itsuo

  Central Research Laboratory Hitachi Ltd.

関連論文

• LPE Film of Bismuth-Substituted Bubble Garnet
• Paramagnetic Behavior of Rare-Earth Ions in Some Orthoferrites
• Mechanism of Magnetization Reversal of Rare-Earth Orthoferrite Single Crystals
• Role of Induced Anisotropy in Magnetic Spectra of Cobalt-Substituted Nickel-Zinc Ferrites

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